I see what you did there... lol
Answers:
trailer paint- I'd suggest something neutral- maybe a slate grey or gunmetal. Something along those lines, I'm hoping to paint my trailer this summer or next, and I'm thinking about going with a color that won't require a matching color on the hull.

bimini- the only bimini I know of that attaches to the pylon is this one, but it's been discontinued. I do have access to a welder and a CNC, I can get stainless tubing at a discount and I'm seriously tempted to try to replicate the design. Besides that particular unit, I haven't seen anything similar.